@article{10_1017_S0017089501020109,
     author = {Cabrerizo, Jos\'e L. and Fern\'andez, Manuel},
     title = {Non-standard 3-spheres locally foliated by elastic helices},
     journal = {Glasgow mathematical journal},
     pages = {269--274},
     year = {2001},
     volume = {43},
     number = {2},
     doi = {10.1017/S0017089501020109},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089501020109/}
}